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From: "Kevin Coffman" <kwc@citi.umich.edu>
To: "Nick Piggin" <npiggin@suse.de>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
	stable@kernel.org, "Alexey Dobriyan" <adobriyan@gmail.com>,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	"Kevin Coffman" <kwc@citi.umich.edu>
Subject: Re: [patch] iov_iter_advance fix
Date: Thu, 6 Mar 2008 10:15:43 -0500	[thread overview]
Message-ID: <4d569c330803060715s53de08d1w7131b8ae930abd4f@mail.gmail.com> (raw)
In-Reply-To: <20080306053950.GA28803@wotan.suse.de>

Thanks Nick,

I've verified this fixes the problem I was seeing.

On Thu, Mar 6, 2008 at 12:39 AM, Nick Piggin <npiggin@suse.de> wrote:
>
>  iov_iter_advance skips over zero-length iovecs, however it does not properly
>  terminate at the end of the iovec array. Fix this by checking against
>  i->count before we skip a zero-length iov.
>
>  The bug was reproduced with a test program that continually randomly creates
>  iovs to writev. The fix was also verified with the same program and also it
>  could verify that the correct data was contained in the file after each
>  writev.
>
>  2.6.25 and 2.6.24.stable requires this fix.
>
>  Signed-off-by: Nick Piggin <npiggin@suse.de>
>  Cc: stable@kernel.org

Tested-by: Kevin Coffman <kwc@citi.umich.edu>

      reply	other threads:[~2008-03-06 15:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-06  5:39 Nick Piggin
2008-03-06 15:15 ` Kevin Coffman [this message]

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